US7766377B2 - Side curtain airbag directional deployment apparatus - Google Patents

Side curtain airbag directional deployment apparatus Download PDF

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Publication number
US7766377B2
US7766377B2 US11/694,520 US69452007A US7766377B2 US 7766377 B2 US7766377 B2 US 7766377B2 US 69452007 A US69452007 A US 69452007A US 7766377 B2 US7766377 B2 US 7766377B2
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United States
Prior art keywords
trim
curtain airbag
peripheral edge
side curtain
deployment
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US11/694,520
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US20080238054A1 (en
Inventor
Brian Downey
Kristi Elliott-Rumberger
Neal Osterhout
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Nissan Motor Co Ltd
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Nissan Technical Center North America Inc
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Priority to US11/694,520 priority Critical patent/US7766377B2/en
Assigned to NISSAN TECHNICAL CENTER NORTH AMERICA, INC. reassignment NISSAN TECHNICAL CENTER NORTH AMERICA, INC. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: ELLIOTT-RUMBERGER, KRISTI, OSTERHOUT, NEAL, DOWNEY, BRIAN
Publication of US20080238054A1 publication Critical patent/US20080238054A1/en
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Publication of US7766377B2 publication Critical patent/US7766377B2/en
Assigned to NISSAN MOTOR CO., LTD. reassignment NISSAN MOTOR CO., LTD. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: NISSAN TECHNICAL CENTER NORTH AMERICA, INC.
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
    • B60R21/23—Inflatable members
    • B60R21/231—Inflatable members characterised by their shape, construction or spatial configuration
    • B60R21/232—Curtain-type airbags deploying mainly in a vertical direction from their top edge
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
    • B60R2021/161—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags characterised by additional means for controlling deployment trajectory

Definitions

  • the present invention relates to a side curtain airbag directional deployment apparatus for directing deployment of the side curtain airbag through an interface joint between one or more trim pieces to a position along a sidewall of a passenger compartment adjacent to a rear seat location of a vehicle.
  • a side curtain airbag deployment apparatus to direct deployment of the side curtain airbag through an interface joint defined at least in part by one or more trim pieces. It would be desirable to provide a side curtain airbag deployment apparatus that included at least one guide member extending longitudinally along at least a portion of a stowed side curtain airbag. It would be desirable to provide a side curtain airbag deployment apparatus that included at least one guide ramp directing deployment of the side curtain airbag toward an openable passage defined at least in part by one or more trim pieces.
  • a side curtain airbag deployment apparatus that surrounded the side curtain airbag on three sides to define an airbag deployment opening facing a rear surface of one or more trim pieces adjacent an openable passage. It would be desirable to provide a side curtain airbag deployment apparatus that included a generally U-shaped cross section.
  • an apparatus for guiding deployment of a stowed side curtain airbag along a side wall of a passenger compartment of a vehicle can include at least one trim piece defining at least a portion of an openable passage allowing deployment of a side curtain airbag, and at least one guide member extending longitudinally along at least a portion of the stowed side curtain airbag.
  • the guide member can include at least one guide ramp directing deployment of the side curtain airbag toward the openable passage defined at least in part by one or more trim pieces.
  • the guide member surrounds the side curtain airbag on three sides to define an airbag deployment opening facing a rear surface of the trim piece adjacent the openable passage.
  • a group of low-retention force projections and complementary interlocking apertures can be formed along abutting first and second edges of a rear pillar trim piece and a center pillar trim piece to temporarily secure an interface joint defined between the abutting first and second edges along the trim pieces with respect to one another when in a closed position.
  • the interface joint can define an openable passage through the interface joint between the first and second edges allowing deployment of a side curtain airbag.
  • At least one guide member can be provided to extend longitudinally along at least a portion of a stowed side curtain airbag.
  • the guide member can include at least one guide ramp directing deployment of the side curtain airbag toward the openable passage defined at least in part by first and second trim pieces.
  • the guide member surrounds the side curtain airbag on three sides to define an airbag deployment opening facing a rear surface of the trim pieces adjacent the openable passage.
  • FIG. 1 is a side elevational view of a rear pillar trim piece and an interface joint with a center pillar trim piece;
  • FIG. 2 is a cross-sectional view of the interface joint between the rear pillar trim component and the center pillar trim component including a low-retention force projection of one trim piece receivable within an aperture formed in the other trim piece;
  • FIG. 3 is a cross-sectional view showing a locating and guiding projection formed on one trim component releasably engageable within a locating and guiding aperture formed in the other component;
  • FIG. 4 is a perspective, exploded rear view of the interface joint defined between first and second edges along a rear pillar trim piece and a center pillar trim piece to define an openable passage along the interface joint, allowing deployment of a side curtain airbag along a sidewall of a passenger compartment adjacent a rear seat location of a two-door coupe style vehicle.
  • an interior trim structure 10 is illustrated for covering a stowed side curtain airbag 12 , while allowing deployment of the side curtain airbag 12 along a sidewall 14 of a passenger compartment 16 in a vehicle 18 .
  • the interior trim structure 10 can include a first trim piece 20 having at least one aperture 22 formed along a first edge 24 , and a second trim piece 26 having at least one low-retention force projection 28 receivable within the aperture 22 formed in the first trim piece 20 .
  • the projection 28 is formed along a second edge 30 of the second trim piece 26 and located in complementary position with respect to the aperture 22 of the first edge 24 of the first trim piece 20 to temporarily secure an interface joint 32 defined between the first and second edges 24 , 30 along the first and second trim pieces 20 , 26 with respect to one another when in a closed position 34 , and to define an openable passage 36 along the interface joint 32 between the first and second edges 24 , 30 allowing deployment of a side curtain airbag 12 .
  • the first and second trim pieces 20 , 26 can include a center pillar trim component and a rear pillar trim component.
  • the center pillar trim component 20 can define an interface joint 32 between adjoining first and second edges 24 , 30 with the rear pillar trim component 26 .
  • the interface joint 32 defines an openable passage 36 along the interface joint 32 between the first and second edges 24 , 30 , allowing deployment of a side curtain airbag 12 through the interior trim structure 10 to a position along a sidewall 14 of a passenger compartment 16 adjacent a rear seat location of a two-door coupe style vehicle 18 .
  • the at least one aperture 22 in the first trim piece 20 can include a first group of apertures 38 for locating and guiding movement of the first and second trim pieces 20 , 26 with respect to one another.
  • a second group of apertures 40 can be provided for releasably locking the first and second trim pieces 20 , 26 in the closed position 34 with respect to one another.
  • the at least one projection 28 of the second trim piece 26 can include a first group of projections 42 for locating and guiding movement of the first and second trim pieces 20 , 26 with respect to one another in cooperating with the first group of apertures 38 .
  • a second group of projections 44 can be provided for releasably locking the first and second trim pieces 20 , 26 in the closed position 34 with respect to one another in cooperation with the second group of apertures 40 .
  • the at least one aperture 22 and at least one projection 28 can include a first group of apertures 38 and corresponding projections 42 for locating and guiding movement of the first and second trim pieces 20 , 26 with respect to one another, and a second group of apertures 40 and corresponding projections 44 can be provided for releasably locking the first and second trim pieces 20 , 26 in the closed position 34 with respect to one another.
  • the projection 28 can include an elongate, generally L-shaped, member 46 having a locking tab 48 located on a distal end 50 for releasable engagement with a shoulder 52 defining a portion of the corresponding aperture 22 .
  • the at least one projection 28 can also include an elongated member 54 having a periphery 56 slidably engageable within a guiding surface 58 associated with the corresponding aperture 22 for locating the first and second trim pieces 20 , 26 with respect to one another.
  • the projection 28 and corresponding aperture 22 provide a desired fit and finish tolerance of the interface joint 32 between the first and second edges 24 , 30 when in the closed position 34 .
  • At least one of the trim pieces 20 , 26 can include a fabric covering 60 .
  • the first and second trim pieces 20 , 26 can include a center pillar trim piece formed of a high-pressure injection molded material defining a lower garnish assembly, and a rear pillar trim piece formed of a low pressure injection molded fabric covered material defining an upper garnish assembly.
  • a plurality of connector receiving pockets 62 can be provided for securing the first and second trim pieces 20 , 26 to a body of the vehicle 18 .
  • an interior trim structure 10 for deployment of a side curtain airbag 12 along a sidewall 14 of a passenger compartment 16 adjacent a rear seat location of a vehicle 18 can include a group of low-retention force projections 44 and complementary interlocking apertures 40 along abutting first and second edges 24 , 30 of a rear pillar trim piece 26 and a center pillar trim piece 20 to temporarily secure an interface joint 32 defined between the abutting first and second edges 24 , 30 along the trim pieces 20 , 26 with respect to one another when in a closed position 34 , and to define an openable passage 36 through the interface joint 32 between the first and second edges 24 , 30 allowing deployment of a side curtain airbag 12 .
  • At least one locator guide projection 42 and complementary receiving aperture 38 can be formed along the abutting first and second edges 24 , 30 of the trim pieces 20 , 26 to align the interface joint 32 defined between the first and second edges 24 , 30 along the trim pieces 20 , 26 with respect to one another in the closed position 34 and to guide opening movement of the interface joint 32 during deployment of a side curtain airbag 12 .
  • a group of locator guide projections 42 and complementary receiving apertures 38 formed along the abutting first and second edges 24 , 30 of the trim pieces 20 , 26 can align the interface joint 32 defined between the first and second edges 24 , 30 along the trim pieces 20 , 26 with respect to one another in the closed position 34 , and can guide opening movement of the interface joint 32 during deployment of a side curtain airbag 12 .
  • the low-retention force projection 44 can include an elongate, generally L-shaped, member 46 having a locking tab 48 located on a distal end 50 for releasable engagement with a shoulder 52 defining a portion of the corresponding aperture 40 .
  • the locator guide projection 42 can include an elongate member 54 having a periphery 56 slidingly engageable with a guiding surface 58 associated with the corresponding aperture 38 for locating the trim pieces 20 , 26 with respect to one another.
  • the combination of projections 42 , 44 and corresponding apertures 38 , 40 provide a desired fit and finish tolerance of the interface joint 32 when in the closed position 34 .
  • a fabric covering 60 can be provided for at least one of the trim pieces 20 , 26 . In one embodiment of the invention, the fabric covering 60 can be provided on the rear pillar trim piece 26 .
  • a side curtain airbag 12 is initially installed above the center pillar trim component 20 between the upper edge and the headliner 62 .
  • the stowed side curtain airbag 12 extends along the upper edge of the center pillar trim component 20 to be enclosed by the rear pillar trim component 26 , so that the interface joint 32 defines an openable passage 36 between first and second adjoining edges 24 , 30 allowing deployment of the side curtain airbag 12 along the sidewall 14 of the passenger compartment 16 of the vehicle 18 .
  • the side curtain airbag 12 is directed toward the inner surface 64 of the rear pillar trim component 26 in order to disengage the low-retention force projection 28 from the corresponding aperture 22 , while the locating and guiding projections 42 cooperatively interact with the locating and guiding apertures 38 to guide the opening movement of the rear pillar trim component 26 from the closed position 34 , shown in solid line in FIG. 2 , to the openable passage 36 , as shown in phantom in FIG. 2 .
  • an embodiment of the invention includes an apparatus 100 for guiding deployment of a stowed side curtain airbag 12 along a sidewall 14 of a passenger compartment 16 in a vehicle 18 .
  • the apparatus 100 can include at least one trim piece 20 and/or 26 defining at least a portion of an openable passage 36 along an interface joint 32 allowing deployment of a side curtain airbag 12 .
  • At least one guide member 102 extends longitudinally along at least a portion of the stowed side curtain airbag 12 and includes at least one guide ramp 104 directing deployment of the side curtain airbag 12 toward the openable passage 36 defined at least in part by the at least one trim piece 20 and/or 26 .
  • the guide number 102 surrounds the side curtain airbag 12 on three sides to define an airbag deployment opening 106 facing a rear surface 64 of at least one of the trim piece 20 and/or 26 adjacent the openable passage 36 .
  • the guide member 102 can be associated with at least one of a trim piece 20 , 26 , a body bracket 108 , a pillar bracket 110 , or any combination thereof.
  • the guide member 102 positions the stowed side curtain airbag 12 at a constant distance from a back side 64 of the covering trim piece 20 and/or 26 along a corresponding length of the guide member 102 .
  • the guide member 102 is shaped to follow a styling path of a structural pillar 112 of the vehicle 18 .
  • the guide member 102 extends inwardly from the structural pillar 112 of the vehicle 18 toward a back side 64 of the trim piece 20 , 26 .
  • the guide member 102 can include a generally U-shaped cross section 114 .
  • the U-shaped cross section 114 of the guide member 102 can include a rear wall portion 116 spaced from the covering trim piece 20 and/or 26 , and two side wall portions 118 , 120 extending from opposite edges 122 , 124 of the rear wall portion 116 toward the covering trim piece 20 and/or 26 .
  • Each side wall portion 118 , 120 defines an obtuse angle with respect to the rear wall portion 116 of the guide member 102 .
  • the guide member 102 extends longitudinally along the structural pillar 112 between a forward location 126 and a rearward location 128 with respect to the vehicle 18 .
  • the guide member 102 can be formed with an energy absorbing guide ramp 130 of sufficient strength to guide deployment of the side curtain airbag 12 toward an interior passenger compartment 16 of the vehicle 18 , while being formed to absorb energy from an impact originating internally from within the vehicle 18 .
  • An interface joint 32 can define at least a portion of the openable passage 36 located between a first edge 24 of one trim piece 20 or 26 and a second edge 30 .
  • At least one trim piece 20 and/or 26 can include a first trim piece 20 having at least one aperture 22 formed along the first edge 24 , and a second trim piece 26 having at least one low-retention force projection 28 receivable within the aperture 22 formed in the first trim piece 20 .
  • the projection 28 is formed along a second edge 30 of the second trim piece 26 and is located in complementary position with respect to the aperture 22 of the first edge 24 of the first trim piece 20 to temporarily secure an interface joint 32 defined between the first and second edges 24 , 30 along the first and second trim pieces 20 , 26 with respect to one another when in a closed position and to define an openable passage 36 along the interface joint 32 between the first and second edges 24 , 30 allowing deployment of the side curtain airbag 12 .
  • the guided member 102 directs airbag deployment toward the openable passage 36 defined along the interface joint 32 between the first and second edges 24 , 30 .
  • the projection 28 can include an elongate, generally L-shaped, member 46 having an locking tab 48 located on a distal end 50 for releasable engagement with a shoulder 52 defining a portion of the corresponding aperture 22 .
  • the projection 28 can include, alternatively or additionally, an elongate member 54 having a periphery 56 slideably engageable within a guiding surface 58 of aperture 22 for locating the first and second trim pieces 20 , 26 with respect to one another.
  • an embodiment of the invention includes a group of low-retention force projections 44 and complementary interlocking apertures 40 formed along abutting first and second edges 24 , 30 of a rear pillar trim piece 26 and a center pillar trim piece 20 to temporarily secure an interface joint 32 defined between the abutting first and second edges 24 , 30 along the trim pieces 20 , 26 with respect to one another when in a closed position, and to define an openable passage 36 through the interface joint 32 between the first and second edges 24 , 30 allowing deployment of a side curtain airbag 12 .
  • the embodiment can include at least one guide member 102 extending longitudinally along at least a portion of the stowed side curtain airbag 12 and including at least one guide ramp 104 directing deployment of the side curtain airbag 12 toward the openable passage 36 .
  • the guide member 102 surrounds the side curtain airbag 12 on three sides to define an airbag deployment opening 106 facing a rear surface 64 of the trim piece 20 and/or 26 adjacent the openable passage 36 .
  • the guide member 102 can extend inwardly from a structural pillar 112 of the vehicle 18 toward a backside 64 of at least one of the trim pieces 20 and/or 26 .
  • the guide member 102 can include a generally U-shaped cross section 114 having a rear wall portion 116 spaced from at least one of the trim pieces 20 and/or 26 , and two side wall portions 118 , 120 extending from opposite edges 122 , 124 of the rear wall portion 116 toward the at least one of the trim pieces 20 and/or 26 .
  • At least one side wall portion 118 , 120 defines an obtuse angle with respect to the rear wall portion 116 of the guide member 102 .
  • the projection 28 can include a low-retention force projection 44 formed as an elongate, generally L-shaped member 46 having a locking tab 48 located on a distal end 50 for releasable engagement with a shoulder 52 defining a portion of the corresponding aperture 40 .
  • the projection 28 can include a locating guide projection 42 formed as an elongate member 54 having a periphery 56 engageable with a guiding surface 58 associated with a corresponding aperture 38 for locating the trim pieces 20 , 26 with respect to one another.
  • an interior trim structure 10 covers a stowed side curtain airbag 12 and allows deployment of the side curtain airbag 12 through the interior trim structure 10 to a position along a sidewall 14 of a passenger compartment 16 adjacent to a rear seat location of a two door coupe style vehicle 18 .
  • the interior trim structure can include a center pillar trim piece 20 and a rear pillar trim piece 26 .
  • the rear pillar trim piece can be assembled to the center pillar trim piece.
  • At least one projection 28 is receivable within, and releasably interlocking with, a corresponding aperture 22 formed in one of the trim pieces 20 or 26 .
  • the projection 28 is formed along a second edge 30 of another of the trim pieces 20 or 26 .
  • Each projection is located in a complementary position with respect to the corresponding aperture 22 formed along the first edge 24 to temporarily secure an interface joint 32 defined between the first and second edges 24 , 30 when in an abutting relationship with respect to one another in a closed position, and defines an openable passage 36 along the interface joint 32 between the first and second edges 24 , 30 allowing deployment of the side curtain airbag 12 through the interface joint 32 .
  • At least one guide member 102 extends longitudinally along at least a portion of the stowed side curtain airbag 12 and includes at least one guide ramp 104 directing deployment of the side curtain airbag 12 toward the openable passage 36 .
  • the guide member 102 surrounds the side curtain airbag 112 on three sides to define an airbag deployment opening 106 facing a rear surface 64 of at least one of the trim pieces 20 and/or 26 adjacent to the openable passage 36 .
  • the guide member 102 extends inwardly from a structural pillar 112 of the vehicle 18 toward a backside 64 of at least one of the trim pieces 20 and/or 26 , and two side wall portions 118 , 120 extend from opposite edges 122 , 124 of a rear wall portion 116 toward at least one of the trim pieces 20 and/or 26 .
  • the three side wall portions 116 , 118 , 120 of the guide 102 direct expansion and deployment of the side curtain airbag 12 toward the back surface 64 of at least one of the trim pieces 20 and/or 26 applying sufficient pressure in order to release the low-retention force projection 44 from the corresponding aperture 40 .
  • the locking tab 48 located on an outer end 50 is released from engagement with shoulder 52 defining a portion of the corresponding aperture 40 .
  • locating guide projections 42 slidingly engage an outer periphery 56 with guiding surface 58 associated with the corresponding aperture 38 .
  • the side curtain airbag 12 continues expansion deploying through the openable passage 36 formed between the two trim pieces 20 , 26 .
  • a fabric covering 60 can optionally be provided for one or both of the trim pieces 20 , 26 .

Abstract

At least one guide member extends longitudinally along at least a portion of a stowed side curtain airbag. At least one guide ramp directs deployment of the side curtain airbag toward the openable passage defined at least in part by one or more trim pieces. The guide member surrounds the side curtain airbag on three sides to define an airbag deployment opening facing a rear surface of the one or more trim pieces adjacent the openable passage. The interior trim structure covers the stowed side curtain airbag and allows deployment of the side curtain airbag through an interface joint to a position along a sidewall of a passenger compartment adjacent a rear seat location of a two-door coupe style vehicle. The interface joint defines an openable passage along the first and second abutting edges allowing deployment of a side curtain airbag through the interface joint.

Description

RELATED APPLICATIONS
This application is related to application Ser. No. 11/694,406 entitled “REAR PILLAR TO CENTER PILLAR TRIM JOINT CONNECTION FOR REAR SEAT PASSENGER AIRBAG SIDE CURTAIN DEPLOYMENT” filed contemporaneously herewith.
FIELD OF THE INVENTION
The present invention relates to a side curtain airbag directional deployment apparatus for directing deployment of the side curtain airbag through an interface joint between one or more trim pieces to a position along a sidewall of a passenger compartment adjacent to a rear seat location of a vehicle.
BACKGROUND
It is generally known for conventional airbag deployment to occur through a headliner assembly to an upper trim interface structure. However, for a coupe version vehicle, the headliner formation at the rear is not possible due to manufacturing limitations. It would be desirable to provide a side curtain airbag deployment apparatus to direct deployment of the side curtain airbag through an interface joint defined at least in part by one or more trim pieces. It would be desirable to provide a side curtain airbag deployment apparatus that included at least one guide member extending longitudinally along at least a portion of a stowed side curtain airbag. It would be desirable to provide a side curtain airbag deployment apparatus that included at least one guide ramp directing deployment of the side curtain airbag toward an openable passage defined at least in part by one or more trim pieces. It would be desirable to provide a side curtain airbag deployment apparatus that surrounded the side curtain airbag on three sides to define an airbag deployment opening facing a rear surface of one or more trim pieces adjacent an openable passage. It would be desirable to provide a side curtain airbag deployment apparatus that included a generally U-shaped cross section.
SUMMARY
According to an embodiment of the invention, an apparatus for guiding deployment of a stowed side curtain airbag along a side wall of a passenger compartment of a vehicle can include at least one trim piece defining at least a portion of an openable passage allowing deployment of a side curtain airbag, and at least one guide member extending longitudinally along at least a portion of the stowed side curtain airbag. The guide member can include at least one guide ramp directing deployment of the side curtain airbag toward the openable passage defined at least in part by one or more trim pieces. The guide member surrounds the side curtain airbag on three sides to define an airbag deployment opening facing a rear surface of the trim piece adjacent the openable passage.
In an interior trim structure for deployment of a side curtain airbag along a sidewall of a passenger compartment adjacent a rear seat location of a vehicle, a group of low-retention force projections and complementary interlocking apertures can be formed along abutting first and second edges of a rear pillar trim piece and a center pillar trim piece to temporarily secure an interface joint defined between the abutting first and second edges along the trim pieces with respect to one another when in a closed position. The interface joint can define an openable passage through the interface joint between the first and second edges allowing deployment of a side curtain airbag. At least one guide member can be provided to extend longitudinally along at least a portion of a stowed side curtain airbag. The guide member can include at least one guide ramp directing deployment of the side curtain airbag toward the openable passage defined at least in part by first and second trim pieces. The guide member surrounds the side curtain airbag on three sides to define an airbag deployment opening facing a rear surface of the trim pieces adjacent the openable passage.
BRIEF DESCRIPTION OF THE DRAWINGS
The description herein makes reference to the accompanying drawings wherein like reference numerals refer to like parts throughout the several views, and wherein:
FIG. 1 is a side elevational view of a rear pillar trim piece and an interface joint with a center pillar trim piece;
FIG. 2 is a cross-sectional view of the interface joint between the rear pillar trim component and the center pillar trim component including a low-retention force projection of one trim piece receivable within an aperture formed in the other trim piece;
FIG. 3 is a cross-sectional view showing a locating and guiding projection formed on one trim component releasably engageable within a locating and guiding aperture formed in the other component; and
FIG. 4 is a perspective, exploded rear view of the interface joint defined between first and second edges along a rear pillar trim piece and a center pillar trim piece to define an openable passage along the interface joint, allowing deployment of a side curtain airbag along a sidewall of a passenger compartment adjacent a rear seat location of a two-door coupe style vehicle.
 DETAILED DESCRIPTION
Referring now to FIGS. 1-4, an interior trim structure 10 is illustrated for covering a stowed side curtain airbag 12, while allowing deployment of the side curtain airbag 12 along a sidewall 14 of a passenger compartment 16 in a vehicle 18. The interior trim structure 10 can include a first trim piece 20 having at least one aperture 22 formed along a first edge 24, and a second trim piece 26 having at least one low-retention force projection 28 receivable within the aperture 22 formed in the first trim piece 20. The projection 28 is formed along a second edge 30 of the second trim piece 26 and located in complementary position with respect to the aperture 22 of the first edge 24 of the first trim piece 20 to temporarily secure an interface joint 32 defined between the first and second edges 24,30 along the first and second trim pieces 20,26 with respect to one another when in a closed position 34, and to define an openable passage 36 along the interface joint 32 between the first and second edges 24,30 allowing deployment of a side curtain airbag 12. By way of example and not limitation, the first and second trim pieces 20,26 can include a center pillar trim component and a rear pillar trim component. The center pillar trim component 20 can define an interface joint 32 between adjoining first and second edges 24,30 with the rear pillar trim component 26. The interface joint 32 defines an openable passage 36 along the interface joint 32 between the first and second edges 24,30, allowing deployment of a side curtain airbag 12 through the interior trim structure 10 to a position along a sidewall 14 of a passenger compartment 16 adjacent a rear seat location of a two-door coupe style vehicle 18.
The at least one aperture 22 in the first trim piece 20 can include a first group of apertures 38 for locating and guiding movement of the first and second trim pieces 20,26 with respect to one another. A second group of apertures 40 can be provided for releasably locking the first and second trim pieces 20,26 in the closed position 34 with respect to one another. The at least one projection 28 of the second trim piece 26 can include a first group of projections 42 for locating and guiding movement of the first and second trim pieces 20,26 with respect to one another in cooperating with the first group of apertures 38. A second group of projections 44 can be provided for releasably locking the first and second trim pieces 20,26 in the closed position 34 with respect to one another in cooperation with the second group of apertures 40. In other words, the at least one aperture 22 and at least one projection 28 can include a first group of apertures 38 and corresponding projections 42 for locating and guiding movement of the first and second trim pieces 20,26 with respect to one another, and a second group of apertures 40 and corresponding projections 44 can be provided for releasably locking the first and second trim pieces 20,26 in the closed position 34 with respect to one another.
The projection 28 can include an elongate, generally L-shaped, member 46 having a locking tab 48 located on a distal end 50 for releasable engagement with a shoulder 52 defining a portion of the corresponding aperture 22. The at least one projection 28 can also include an elongated member 54 having a periphery 56 slidably engageable within a guiding surface 58 associated with the corresponding aperture 22 for locating the first and second trim pieces 20,26 with respect to one another. The projection 28 and corresponding aperture 22 provide a desired fit and finish tolerance of the interface joint 32 between the first and second edges 24,30 when in the closed position 34.
At least one of the trim pieces 20,26 can include a fabric covering 60. The first and second trim pieces 20,26 can include a center pillar trim piece formed of a high-pressure injection molded material defining a lower garnish assembly, and a rear pillar trim piece formed of a low pressure injection molded fabric covered material defining an upper garnish assembly. A plurality of connector receiving pockets 62 can be provided for securing the first and second trim pieces 20,26 to a body of the vehicle 18.
According to an embodiment of the present invention, an interior trim structure 10 for deployment of a side curtain airbag 12 along a sidewall 14 of a passenger compartment 16 adjacent a rear seat location of a vehicle 18 can include a group of low-retention force projections 44 and complementary interlocking apertures 40 along abutting first and second edges 24,30 of a rear pillar trim piece 26 and a center pillar trim piece 20 to temporarily secure an interface joint 32 defined between the abutting first and second edges 24,30 along the trim pieces 20,26 with respect to one another when in a closed position 34, and to define an openable passage 36 through the interface joint 32 between the first and second edges 24,30 allowing deployment of a side curtain airbag 12. Optionally, at least one locator guide projection 42 and complementary receiving aperture 38 can be formed along the abutting first and second edges 24,30 of the trim pieces 20,26 to align the interface joint 32 defined between the first and second edges 24,30 along the trim pieces 20,26 with respect to one another in the closed position 34 and to guide opening movement of the interface joint 32 during deployment of a side curtain airbag 12. Alternatively, a group of locator guide projections 42 and complementary receiving apertures 38 formed along the abutting first and second edges 24,30 of the trim pieces 20,26 can align the interface joint 32 defined between the first and second edges 24,30 along the trim pieces 20,26 with respect to one another in the closed position 34, and can guide opening movement of the interface joint 32 during deployment of a side curtain airbag 12.
The low-retention force projection 44 can include an elongate, generally L-shaped, member 46 having a locking tab 48 located on a distal end 50 for releasable engagement with a shoulder 52 defining a portion of the corresponding aperture 40. The locator guide projection 42 can include an elongate member 54 having a periphery 56 slidingly engageable with a guiding surface 58 associated with the corresponding aperture 38 for locating the trim pieces 20,26 with respect to one another. The combination of projections 42,44 and corresponding apertures 38,40 provide a desired fit and finish tolerance of the interface joint 32 when in the closed position 34. A fabric covering 60 can be provided for at least one of the trim pieces 20,26. In one embodiment of the invention, the fabric covering 60 can be provided on the rear pillar trim piece 26.
As seen in FIG. 1, a side curtain airbag 12 is initially installed above the center pillar trim component 20 between the upper edge and the headliner 62. The stowed side curtain airbag 12 extends along the upper edge of the center pillar trim component 20 to be enclosed by the rear pillar trim component 26, so that the interface joint 32 defines an openable passage 36 between first and second adjoining edges 24,30 allowing deployment of the side curtain airbag 12 along the sidewall 14 of the passenger compartment 16 of the vehicle 18. As best seen in FIGS. 2 and 3, the side curtain airbag 12 is directed toward the inner surface 64 of the rear pillar trim component 26 in order to disengage the low-retention force projection 28 from the corresponding aperture 22, while the locating and guiding projections 42 cooperatively interact with the locating and guiding apertures 38 to guide the opening movement of the rear pillar trim component 26 from the closed position 34, shown in solid line in FIG. 2, to the openable passage 36, as shown in phantom in FIG. 2.
Referring to FIGS. 1-3, an embodiment of the invention includes an apparatus 100 for guiding deployment of a stowed side curtain airbag 12 along a sidewall 14 of a passenger compartment 16 in a vehicle 18. The apparatus 100 can include at least one trim piece 20 and/or 26 defining at least a portion of an openable passage 36 along an interface joint 32 allowing deployment of a side curtain airbag 12. At least one guide member 102 extends longitudinally along at least a portion of the stowed side curtain airbag 12 and includes at least one guide ramp 104 directing deployment of the side curtain airbag 12 toward the openable passage 36 defined at least in part by the at least one trim piece 20 and/or 26. The guide number 102 surrounds the side curtain airbag 12 on three sides to define an airbag deployment opening 106 facing a rear surface 64 of at least one of the trim piece 20 and/or 26 adjacent the openable passage 36.
The guide member 102 can be associated with at least one of a trim piece 20, 26, a body bracket 108, a pillar bracket 110, or any combination thereof. The guide member 102 positions the stowed side curtain airbag 12 at a constant distance from a back side 64 of the covering trim piece 20 and/or 26 along a corresponding length of the guide member 102. The guide member 102 is shaped to follow a styling path of a structural pillar 112 of the vehicle 18. The guide member 102 extends inwardly from the structural pillar 112 of the vehicle 18 toward a back side 64 of the trim piece 20, 26.
The guide member 102 can include a generally U-shaped cross section 114. The U-shaped cross section 114 of the guide member 102 can include a rear wall portion 116 spaced from the covering trim piece 20 and/or 26, and two side wall portions 118,120 extending from opposite edges 122,124 of the rear wall portion 116 toward the covering trim piece 20 and/or 26. Each side wall portion 118,120 defines an obtuse angle with respect to the rear wall portion 116 of the guide member 102.
The guide member 102 extends longitudinally along the structural pillar 112 between a forward location 126 and a rearward location 128 with respect to the vehicle 18. The guide member 102 can be formed with an energy absorbing guide ramp 130 of sufficient strength to guide deployment of the side curtain airbag 12 toward an interior passenger compartment 16 of the vehicle 18, while being formed to absorb energy from an impact originating internally from within the vehicle 18.
An interface joint 32 can define at least a portion of the openable passage 36 located between a first edge 24 of one trim piece 20 or 26 and a second edge 30. At least one trim piece 20 and/or 26 can include a first trim piece 20 having at least one aperture 22 formed along the first edge 24, and a second trim piece 26 having at least one low-retention force projection 28 receivable within the aperture 22 formed in the first trim piece 20. The projection 28 is formed along a second edge 30 of the second trim piece 26 and is located in complementary position with respect to the aperture 22 of the first edge 24 of the first trim piece 20 to temporarily secure an interface joint 32 defined between the first and second edges 24,30 along the first and second trim pieces 20,26 with respect to one another when in a closed position and to define an openable passage 36 along the interface joint 32 between the first and second edges 24,30 allowing deployment of the side curtain airbag 12. The guided member 102 directs airbag deployment toward the openable passage 36 defined along the interface joint 32 between the first and second edges 24,30.
The projection 28 can include an elongate, generally L-shaped, member 46 having an locking tab 48 located on a distal end 50 for releasable engagement with a shoulder 52 defining a portion of the corresponding aperture 22. The projection 28 can include, alternatively or additionally, an elongate member 54 having a periphery 56 slideably engageable within a guiding surface 58 of aperture 22 for locating the first and second trim pieces 20,26 with respect to one another.
In an interior trim structure 10 for deployment of a side curtain airbag 12 along a sidewall 14 of a passenger compartment 16 adjacent to a rear seat location of a vehicle 18, an embodiment of the invention includes a group of low-retention force projections 44 and complementary interlocking apertures 40 formed along abutting first and second edges 24,30 of a rear pillar trim piece 26 and a center pillar trim piece 20 to temporarily secure an interface joint 32 defined between the abutting first and second edges 24,30 along the trim pieces 20,26 with respect to one another when in a closed position, and to define an openable passage 36 through the interface joint 32 between the first and second edges 24,30 allowing deployment of a side curtain airbag 12. The embodiment can include at least one guide member 102 extending longitudinally along at least a portion of the stowed side curtain airbag 12 and including at least one guide ramp 104 directing deployment of the side curtain airbag 12 toward the openable passage 36. The guide member 102 surrounds the side curtain airbag 12 on three sides to define an airbag deployment opening 106 facing a rear surface 64 of the trim piece 20 and/or 26 adjacent the openable passage 36.
The guide member 102 can extend inwardly from a structural pillar 112 of the vehicle 18 toward a backside 64 of at least one of the trim pieces 20 and/or 26. The guide member 102 can include a generally U-shaped cross section 114 having a rear wall portion 116 spaced from at least one of the trim pieces 20 and/or 26, and two side wall portions 118,120 extending from opposite edges 122,124 of the rear wall portion 116 toward the at least one of the trim pieces 20 and/or 26. At least one side wall portion 118,120 defines an obtuse angle with respect to the rear wall portion 116 of the guide member 102.
The projection 28 can include a low-retention force projection 44 formed as an elongate, generally L-shaped member 46 having a locking tab 48 located on a distal end 50 for releasable engagement with a shoulder 52 defining a portion of the corresponding aperture 40. The projection 28 can include a locating guide projection 42 formed as an elongate member 54 having a periphery 56 engageable with a guiding surface 58 associated with a corresponding aperture 38 for locating the trim pieces 20,26 with respect to one another.
According to an embodiment of the invention, an interior trim structure 10 covers a stowed side curtain airbag 12 and allows deployment of the side curtain airbag 12 through the interior trim structure 10 to a position along a sidewall 14 of a passenger compartment 16 adjacent to a rear seat location of a two door coupe style vehicle 18. The interior trim structure can include a center pillar trim piece 20 and a rear pillar trim piece 26. The rear pillar trim piece can be assembled to the center pillar trim piece. At least one projection 28 is receivable within, and releasably interlocking with, a corresponding aperture 22 formed in one of the trim pieces 20 or 26. The projection 28 is formed along a second edge 30 of another of the trim pieces 20 or 26. Each projection is located in a complementary position with respect to the corresponding aperture 22 formed along the first edge 24 to temporarily secure an interface joint 32 defined between the first and second edges 24,30 when in an abutting relationship with respect to one another in a closed position, and defines an openable passage 36 along the interface joint 32 between the first and second edges 24,30 allowing deployment of the side curtain airbag 12 through the interface joint 32. At least one guide member 102 extends longitudinally along at least a portion of the stowed side curtain airbag 12 and includes at least one guide ramp 104 directing deployment of the side curtain airbag 12 toward the openable passage 36. The guide member 102 surrounds the side curtain airbag 112 on three sides to define an airbag deployment opening 106 facing a rear surface 64 of at least one of the trim pieces 20 and/or 26 adjacent to the openable passage 36. The guide member 102 extends inwardly from a structural pillar 112 of the vehicle 18 toward a backside 64 of at least one of the trim pieces 20 and/or 26, and two side wall portions 118,120 extend from opposite edges 122,124 of a rear wall portion 116 toward at least one of the trim pieces 20 and/or 26.
An operation, as the stowed side curtain airbag 12 is inflated for deployment, the three side wall portions 116,118,120 of the guide 102 direct expansion and deployment of the side curtain airbag 12 toward the back surface 64 of at least one of the trim pieces 20 and/or 26 applying sufficient pressure in order to release the low-retention force projection 44 from the corresponding aperture 40. More particularly, the locking tab 48 located on an outer end 50 is released from engagement with shoulder 52 defining a portion of the corresponding aperture 40. As the interface joint 32 is opened to define openable passage 36, locating guide projections 42 slidingly engage an outer periphery 56 with guiding surface 58 associated with the corresponding aperture 38. After the interface joint 32 has separated the two adjacent edges 24,30 with respect to one another to define the openable passage 36, the side curtain airbag 12 continues expansion deploying through the openable passage 36 formed between the two trim pieces 20,26. If desired, a fabric covering 60 can optionally be provided for one or both of the trim pieces 20,26.
While the invention has been described in connection with what is presently considered to be the most practical and preferred embodiment, it is to be understood that the invention is not to be limited to the disclosed embodiments but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims, which scope is to be accorded the broadest interpretation so as to encompass all such modifications and equivalent structures as is permitted under the law.

Claims (19)

1. An apparatus for guiding deployment of a stowed side curtain airbag along a side wall of a passenger compartment of a vehicle comprising:
a first trim piece exposed to the passenger compartment and having a first peripheral edge;
a second trim piece exposed to the passenger compartment and having a second peripheral edge;
an interface joint defined by the first peripheral edge and second peripheral edge, the interface joint defining at least a portion of an openable passage allowing deployment of the side curtain airbag, wherein the first peripheral edge and the second peripheral edge are adjacent when the openable passage is closed, and wherein the first peripheral edge and the second peripheral edge are spaced apart when the openable passage is open, and further wherein the first trim piece includes at least one aperture along the first peripheral edge, and the second trim piece includes at least one projection receivable within the aperture formed in the first trim piece, the projection formed along the second peripheral edge and located in a complementary position with respect to the aperture of the first peripheral edge to temporarily secure the interface joint defined between the first and second peripheral edges; and
at least one guide member extending along at least a portion of the interface joint and including at least one guide ramp directing deployment of the side curtain airbag toward the openable passage defined at least in part by the interface joint, the guide member surrounding the side curtain airbag on three sides to define an airbag deployment opening configured and arranged such that the side curtain airbag extends through at least the majority of the portion of the openable passage defined by the interface joint upon deployment.
2. The apparatus of claim 1, wherein the at least one guide member positions the side curtain airbag at a constant distance from a back side of the first and second trim pieces along a corresponding length of the guide member.
3. The apparatus of claim 1, wherein the at least one guide member extends inwardly from a structural pillar of a vehicle toward a back side of one of the first trim piece or the second trim piece, and includes a generally U-shaped cross section.
4. The apparatus of claim 3, wherein the U-shaped cross section of the guide member includes a rear wall portion spaced from the first and second trim pieces and two side wall portions extending from opposite edges of the rear wall portion toward the first and second trim pieces, each side wall portion defining an obtuse angle with respect to the rear wall portion of the guide member.
5. The apparatus of claim 1, wherein the at least one guide member is formed with an energy absorbing guide ramp of sufficient strength to guide deployment of the side curtain airbag toward an interior passenger compartment of the vehicle, while being formed to absorb energy from an impact originating internally from within the vehicle.
6. The apparatus of claim 1, wherein the includes at least one projection of the second trim piece is a low retention force projection.
7. An interior trim structure for guiding deployment of a stowed side curtain airbag along a side wall of a passenger compartment of a vehicle comprising:
a first trim piece exposed to the passenger compartment and having a first edge;
a second trim piece exposed to the passenger compartment and having a second edge and located in a complementary position with respect to the first edge;
an interface joint defined between the first and second edges, the interface joint defining at least a portion of an openable passage wherein the first and second edges are adjacent to each other when the openable passage is closed and the first and second edges are spaced apart allowing deployment of the side curtain airbag when the openable passage is open, and further wherein the first trim piece includes at least one aperture along the first edge, and the second trim piece includes at least one projection receivable within the aperture formed in the first trim piece, the projection formed along the second edge and located in a complementary position with respect to the aperture of the first edge to temporarily secure the interface joint defined between the first and second edges; and
at least one guide member extending longitudinally along at least a portion of the interface joint and including at least one guide ramp directing deployment of the side curtain airbag toward the first and second rigid trim pieces, the guide member surrounding the side curtain airbag on three sides to define an opening facing the first and second rigid trim pieces and configured and arranged so that the side curtain airbag extends over the second trim panel upon deployment.
8. The interior trim structure of claim 7, wherein the at least one guide member positions a stowed side curtain airbag at a constant distance from a back side of the first and second trim pieces along a corresponding length of the guide member.
9. The interior trim structure of claim 7, wherein the at least one guide member extends inwardly from a structural pillar of a vehicle toward a back side of the first and second trim pieces, and includes a generally U-shaped cross section, wherein the U-shaped cross section of the guide member includes a rear wall portion spaced from the first and second trim pieces and two side wall portions extending from opposite edges of the rear wall portion toward the first and second trim pieces, each side wall portion defining an obtuse angle with respect to the rear wall portion of the guide member.
10. An interior trim structure for guiding deployment of a stowed side curtain airbag along a side wall of a passenger compartment of a vehicle comprising:
a first trim piece exposed to the passenger compartment and having a first peripheral edge;
a second trim piece exposed to the passenger compartment and having a second peripheral edge;
an interface joint defined by the first peripheral edge and second peripheral edge, the interface joint defining at least a portion of an openable passage allowing deployment of the side curtain airbag, wherein the first peripheral edge and the second peripheral edge are adjacent when the openable passage is closed, and wherein the first peripheral edge and the second peripheral edge are spaced apart when the openable passage is open, and further wherein the first trim piece includes at least one aperture along the first peripheral edge, and the second trim piece includes at least one projection receivable within the aperture formed in the first trim piece, the projection formed along the second peripheral edge and located in a complementary position with respect to the aperture of the first peripheral edge to temporarily secure the interface joint defined between the first and second peripheral edges; and
at least one guide member extending along at least a portion of the interface joint and having a generally U-shaped cross section including a rear guide ramp, an upper guide ramp, and a lower guide ramp defining a guide surface for directing deployment of the side curtain airbag toward the openable passage,
wherein a distal end of the lower guide ramp is spaced apart from the first and second trim panels.
11. The interior trim structure of claim 10, wherein the upper and lower guide ramps each define an obtuse angle with respect to the rear guide ramp of the guide member.
12. The interior trim structure of claim 10, wherein the lower guide ramp is free from attachment to the first and second trim panels.
13. The interior trim structure of claim 10, wherein the lower guide ramp defines a plane that passes through one of the first and second rigid trim panels at an obtuse angle.
14. An interior trim structure for guiding deployment of a stowed side curtain airbag along a side wall of a passenger compartment of a vehicle comprising:
a first trim piece exposed to the passenger compartment and having a first peripheral edge;
a second trim piece exposed to the passenger compartment and having a second peripheral edge;
an interface joint defined by the first peripheral edge and second peripheral edge, the interface joint defining at least a portion of an openable passage allowing deployment of the side curtain airbag, wherein the first peripheral edge and the second peripheral edge are adjacent when the openable passage is closed, and wherein the first peripheral edge and the second peripheral edge are spaced apart when the openable passage is open, and further wherein the first trim panel is a rear pillar trim piece that conceals at least a portion of a rear structural pillar of the vehicle, the second trim panel is a center pillar trim piece that conceals at least a portion of a center structural pillar of the vehicle as well as at least a portion of the rear structural pillar of the vehicle, the interface joint extends longitudinally along the rear structural pillar of the vehicle, and the openable passage is configured and arranged such that the side curtain airbag extends downward through the openable passage and substantially overlies the second trim panel along at least the majority of the portion of the openable passage defined by the interface joint upon deployment; and
at least one guide member that is concealed behind the first-rigid trim panel and the second trim panel such that the guide member is not exposed to the passenger compartment of the vehicle when the openable passage is closed, the guide member extending along at least a portion of the interface joint and having a generally U-shaped cross section including a rear guide ramp, an upper guide ramp, and a lower guide ramp defining a guide surface for directing deployment of the side curtain airbag toward the openable passage;
wherein the lower guide ramp defines a plane, the plane passing through one of the first and second trim panels at a point spaced apart from the interface joint.
15. The interior trim structure of claim 14, the plane defined by the lower guide ramp passes through one of the first trim panel or the second trim panel at an obtuse angle.
16. The interior trim structure of claim 14, wherein the upper and lower guide ramps each define an obtuse angle with respect to the rear guide ramp.
17. The apparatus of claim 3, wherein the U-shaped cross section of the guide member includes a rear guide ramp, an upper guide ramp, and a lower guide ramp defining a guide surface for directing deployment of the side curtain airbag toward the openable passage, the rear guide ramp spaced from the first and second trim pieces, the upper guide ramp and the lower guide ramp extending from opposite edges of the rear guide ramp toward the first and second trim pieces, the upper guide ramp and the lower guide ramp each defining an obtuse angle with respect to the rear wall portion of the guide member, and the lower guide ramp defining a plane that passes through one of the first rigid trim panel or the second trim panel at an obtuse angle.
18. The interior trim structure of claim 7, wherein the first edge is positioned above the second edge.
19. The interior trim structure of claim 7, wherein the at least one projection of the second trim piece is a low retention force projection.
US11/694,520 2007-03-30 2007-03-30 Side curtain airbag directional deployment apparatus Active 2028-08-08 US7766377B2 (en)

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